30021140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{397}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 66864000

約数和(自身を除く): 36842860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 199, 380, 397, 398, 794, 796, 995, 1588, 1985, 1990, 3781, 3970, 3980, 7543, 7562, 7940, 15086, 15124, 18905, 30172, 37715, 37810, 75430, 75620, 79003, 150860, 158006, 316012, 395015, 790030, 1501057, 1580060, 3002114, 6004228, 7505285, 15010570, 30021140]

約数ペア:

[(1, 30021140), (2, 15010570), (4, 7505285), (5, 6004228), (10, 3002114), (19, 1580060), (20, 1501057), (38, 790030), (76, 395015), (95, 316012), (190, 158006), (199, 150860), (380, 79003), (397, 75620), (398, 75430), (794, 37810), (796, 37715), (995, 30172), (1588, 18905), (1985, 15124), (1990, 15086), (3781, 7940), (3970, 7562), (3980, 7543)]